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authorBrian Foster <bfoster@redhat.com>2013-05-15 12:30:07 -0400
committerAnand Avati <avati@redhat.com>2013-05-15 17:19:06 -0700
commit8a7cda772d34b96c45714160ce4ec3b0c0d5b29b (patch)
treebc62ef68236ed6d2ed7c7545783de3aa0bfa867b /xlators/performance
parent68712c33b4c792449e7d49ae348f96f97175bbd9 (diff)
mount/fuse: enable fuse real async dio when available
fuse has support for optimized async. direct I/O handling via the FUSE_ASYNC_DIO init flag. Enable FUSE_ASYNC_DIO when advertised by fuse. performance/write-behind: fix dio hang Also fix a hang observed during aio-stress testing due to conflicting request handling in write-behind. Overlapping requests are skipped in pick_winds and may never continue when the conflicting write in progress returns. Add a wb_process_queue() call after a non-wb request completes to keep the queue moving. BUG: 963258 Change-Id: Ifba6e8aba7a7790b288a32067706b75f263105d4 Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-on: http://review.gluster.org/5014 Reviewed-by: Anand Avati <avati@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
Diffstat (limited to 'xlators/performance')
-rw-r--r--xlators/performance/write-behind/src/write-behind.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/xlators/performance/write-behind/src/write-behind.c b/xlators/performance/write-behind/src/write-behind.c
index 055eed6776b..ebb8410a093 100644
--- a/xlators/performance/write-behind/src/write-behind.c
+++ b/xlators/performance/write-behind/src/write-behind.c
@@ -1194,12 +1194,17 @@ wb_writev_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
struct iatt *prebuf, struct iatt *postbuf, dict_t *xdata)
{
wb_request_t *req = NULL;
+ wb_inode_t *wb_inode;
req = frame->local;
frame->local = NULL;
+ wb_inode = req->wb_inode;
wb_request_unref (req);
+ /* requests could be pending while this was in progress */
+ wb_process_queue(wb_inode);
+
STACK_UNWIND_STRICT (writev, frame, op_ret, op_errno, prebuf, postbuf,
xdata);
return 0;